Google finally launches push synchronization for the iPhone and iPod touch:
For iPhone and Windows Mobile devices, Google Sync allows you to get your Gmail contacts and Google Calendar events onto your phone. Sync uses push technology, which means that any changes you make to your calendar or contacts from the browser or phone will be reflected on your device within minutes. For phones that support SyncML, the tool will allow you to get your Gmail contacts onto your phone. For all of these devices, synchronization happens automatically over the air, without having to manually sync your phone. The connection is always on, which means your information is always up-to-date, no matter where you are or what you’re doing.